Husqvarna K750 manual Cutting blades, General, Abrasive discs

SAFETY INSTRUCTIONS

Pinching/rotation

If the cut is pressed together this can lead to jamming. The machine can be pulled down suddenly with a very powerful jerk.

How to avoid pinching

Support the work piece in such a way that the cut remains open during the cutting operation and when the cut is finished.

Cutting blades

WARNING! A cutting blade may burst and

!cause injury to the operator.

Never use a cutting blade at a lower speed rating than that of the power cutter.

Never use a cutting blade for any other materials than that it was intended for.

WARNING! Cutting plastics with a diamond

!blade or rescue blade can cause kickback when the material melts due to the heat produced when cutting and sticks to the blade.

General

Cutting blades are available in two basic designs; abrasive discs and diamond blades.

Always remove the cutting blade when the machine is transported.

Make sure that the right bushing is used for the cutting blade to be fitted on the machine. See the instructions under the heading Assembling the cutting blade.

High-quality blades are often most economical. Lower quality blades often have inferior cutting capacity and a shorter service life, which results in a higher cost in relation to the quantity of material that is cut.

Water cooling

WARNING! Water cooling, which is used

!when cutting concrete, cools the blade and increases its service life while also reducing the formation of dust. Disadvantages include difficulties at very low temperatures, the risk of damaging floors and other structural elements, and the risk of slipping.

After using an abrasive disc with water cooling, run the disc dry for about half a minute. If an abrasive disc is stored in humid conditions, this can cause imbalance and result in injury.

High speed handheld machines

Our cutting blades are manufactured for high-speed, portable power cutters. If blades from other manufacturers are used, ensure that the blades conform to all regulations and demands that concern this type of power cutter.

Special blades

Some cutting blades are designed for stationary equipment and for use with attachments.Such cutting blades must not be used on portable power cutters.

Always contact local authorities and make sure you are following applicable directives.

Abrasive discs

The cutting material on abrasive discs consists of grit bonded using an organic binder. ”Reinforced blades” are made up of a fabric or fibre base that prevents total breakage at maximum working speed if the blade should be cracked or damaged.

A cutting blade’s performance is determined by the type and size of abrasive corn, and the type and hardness of the bonding agent.

Abrasive discs, types and use

	Use
Disc type	Material	Water cooling
	Concrete, asphalt,	Can be used to
		reduce dust. Run the
	stone masonry, cast
		disc dry for about a
	iron, aluminium,
Concrete		half minute after
	copper, brass,
		using an abrasive
	cables, rubber,
		disc with water
	plastic, etc.
		cooling.
	Steel, steel alloys
Metal	and other hard	NOT recommended
	metals.

Check that the blade is approved for the same or higher speed according to the aproval plate of the engine. Never use a cutting blade with a lower speed rating than that of the power cutter.

English – 11